/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.apache.skywalking.apm.commons.datacarrier.consumer;

import java.util.List;
import java.util.Properties;

public interface IConsumer<T> {
    void init(final Properties properties);

    void consume(List<T> data);

    void onError(List<T> data, Throwable t);

    void onExit();

    /**
     * Notify the implementation, if there is nothing fetched from the queue. This could be used as a timer to trigger
     * reaction if the queue has no element.
     */
    default void nothingToConsume() {
        return;
    }
}
